Hot-air drum.



No. 815,624] PATBNTED MAR. 20,1906.

.W. A. NORTON. HOT AIR DRUM.

APPLICATION FILED MAR-27, 1905.

To all whom it may con/0. 7 14:

UNITED STATES PATENT oFrioE.-- l WILLIAM A. nonroi i, vMAR,sn ALIJIJOWN,iowA.

HOT-IAIR DRUM, I l

Specification of Letters Patent.

Patented March 20, eoe.

Appl ca i n fil fl. Mar h 27. i lNQ- 252, 8

Be it known that I, WILLIAM A. Non o a citizen of the United SWDQS,residi at Marshalltown, in the county of Marshall and State of Iowa,have invente a certain new and useful Hot-Air Drum, of which thefollowing is a specification.

The object of my invention is to provide a device of this class ofsimple, durable, and inexpensive constructionadapted to be used inconnection with, a furnace or stove for furnishing additional heateither in the same rom as the furnace or stove or in an adjoining room.

Referrin to the accompanying drawings, Figure 1 s ows a vertical centralsectional view of the hot-air drum and connected view on the line 2 2 ofFig. 1.

In the accompanying drawings 1 have used'the reference-numeral 10 toindicate a furnace or stove, and 11 to indicate a chim- The hot-air drumcomprises a base 12, supported on legs 13. On top'of the base is asheet-metal cylinder 14, having a top 15, and also having a door 16 toprovide for cleaning out the interior of the cylinder. Surrounding thecylinder 14 is a sheet-metal jacket, the lower edge of which isindicated by the numeral 17 and is bolted or riveted to the cylinder 14some distance above its lower end. The saidjacket projects outwardly at18, then upwardly at 19, and is formed with a top 20. The sides 19 andthe top 20 are spaced apart fromthe sides and top of the cylinder. I

The numeral 21 indicates a pipe or sleeve communicating between thefurnace or stove and the interior of the cylinder 14 near its top andpassed through an opening in the jacket. At a point diametricallyopposite from the point 21 is a similar pipe 22, communicating betweenthe interior of the cylinder 14 and the chimney or flue 11. This pipepasses through an opening in the jacket. To

or fresh" air.

parts,-and Fig. 2 shows a vertical sectional tio pass ng t ugh the pipe21 will strike sa1 deflectorr'plates and be directed downs wardly andunder the deflector-plates before they can ri e and pa st rough the pipe22'.

The numeral 24 indicates a grating arranged in a suitable position toreceive cool This grating communicates with a fresh-air-supply pipe 25which extends downwardly, then laterally, and then upwardly through thebase 12 and through the top 15 of the cylinder 14. A hot-air-dischargepipe 26 communicates with the interior of the jacket at a point directlyabove the discharge end of the pipe25 and spaced apart there rom andextends to the grating 27," through is discharged.

Inpractical use and assuming that the partsare arranged as shown it isobvious that -,the hot-air drum may, if desired, be 10- which the heatedair cated ;at a point'distant from the furnace or stove. All of thesmoke, gases, and other products of combustion from the stove will enterthe top portion of the cylinder at one side and be directed by the,plates 23 downwardly to the bottom ofthe cylinder, and they will then 7rise on the opposite side of the cylinder to the top and from thence bedischarged to theflue or chimney. In this way the heat from the productsof combustion will be thrown against or brought into contact with theentire surface of the cylinder 14 and also with the entire surface ofthe portion of the pipe 25 Within said cylinder. Hence a large portionof the heat contained in the products of combustion will be transmittedto the cyline der and be radiated from the outer surface thereof. All ofthe heat radiated from the part of the pipe 25 within the cylinder willbe discharged upwardly through the top of the pipe 25, and all of theair that is discharged through the pipe 26'is brought by the pipe 25from a maybe obtained. In this way the circulation through the pipe 25is greatly accelerated, 'because the cool air will readily enter theinduction end of the pipe 25 and the heated air,

will readily discharge from the other end, so

that a good circulation is when the drum is heated to a relativelyslight degree. By the arrangement shown none of the smoke or gases fromthe furnace or stove can in any way enter or become mingled withobtained, even distant elevated point wherefresh 'air the fresh airdischarging through the pipe 26.

. Having thus described my invention, What I claim fand desire to secureby Letters Patent of the United States therefor, is

In a heating-drum, the combination of a base, a sheet-metal cylinder onthe base having a closed top, a jacket surrounding the sheet-metalcylinder, spaced apart from its sides and top and extending to a pointnear the lower end of the cylinder, a door for providing access to thecylinder below the jacket,

deflector-plates on the interior of the cylin' der extending from thetop to a point near its l'owerend, a pipe passed through the jacket andinto the interior of the cylinder at its top substantially at rightangles to the deflectorplates, a second pipe passed through the jacketand into the top of the cylinder diametrically opposite from the first,a cold-airsupply pipe extending downwardly and then upwardly through thebase of the cylinder and also through the top of the cylinder and ahot-air-discharge pipe communicating with the interior of the jacket ata point in line with the discharge end of the cold-air-supply pipe.

WILLIAM A. NORTON. Witnesses C. M. NORTON, R. W. HARGRAVE.

